Samsung AM MXVAFC Series Installation Manual page 78

Charging additional refrigerant
• Open the gas side and liquid side service valve completely after charging the refrigerant . (If you operate the air
conditioner with the service valve closed, the important parts may be damaged . )
CAUTION
• Put on safety equipment when charging refrigerant .
• Do not charge the refrigerant when you adjust or control other product such as indoor units or EEV kits .
• If you charge the refrigerant with the front cabinet open, be very careful with the fan on the top of the product
to prevent personal injury .
• When the ambient temperature is low in winter time, do not heat the refrigerant container to speed up the
charging process . There is risk of explosion .
• Close the valve of the refrigerant container immediately after charging the refrigerant . If not, there might be a
change in entire amount of refrigerant .
Using service valve for gas
f After charging the refrigerant, close all caps as shown in the illustration .
f
f Tightening torque for the cap of refrigerant charging port 10~12N·m f
(7 . 4 ~ 8 . 9 lbf·ft)
f Tightening torque for the cap of control part 20~25N·m (14 . 8 ~ 18 . 4
f
lbf·ft)
f Opening/closing torque for the valve f
- Over Ø19 . 0 5mm (Ø3/4inch) : 10 N·m (7 . 4 lbf·ft)
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Cap for the control part
Cap for the refrigerant
charging port